ROTARY ELECTRIC MACHINE ROTOR
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United States of America Patent
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Issued Date -
Oct 27, 2016
app pub date -
Dec 4, 2014
filing date -
Dec 11, 2013
priority date (Note) -
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Abstract
A rotary electric machine rotor includes a rotor core, a rotor shaft, and a nut portion. The rotor core is made up of stacked thin magnetic plates. The rotor shaft has, on one end side, a receiving portion that abuts against one end surface in an axial direction of the rotor core, and has, on the other end side, an outer diameter threaded structure. The nut portion meshes with the outer diameter threaded structure of the rotor shaft. A position, on the rotor shaft, of a contact surface between the nut portion and the rotor core is positioned farther to the other end side in the axial direction than the outer diameter threaded structure, when the rotor core is fixed to the rotor shaft by the nut portion being fastened to the outer diameter threaded structure of the rotor shaft.
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